Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983liaco..24..355s&link_type=abstract
IN: Quasars and gravitational lenses; Proceedings of the Twenty-fourth Liege International Astrophysical Colloquium, Cointe-Ougr
Astronomy and Astrophysics
Astronomy
7
Astronomical Spectroscopy, Quasars, Ultraviolet Astronomy, Astronomical Catalogs, Charge Coupled Devices, Faint Object Camera, Telescopes
Scientific paper
A search for ultraviolet-excess objects in a field centered around NGC 450 has revealed the presence of two quasar-candidates (18.2 and 17.4 mag) fairly near one another (separation of 77 arcsec). Preliminary spectroscopy with the Palomar 5 m telescope shows that these objects are indeed two quasars (Q0107 - 025 A and B) having very similar spectra and redshifts (of about 0.96), suggesting a new possible case of twin quasars or of a gravitational lens. Although the analysis (to be published elsewhere) of additional spectroscopic data collected with the ESO 3.6 m telescope rather favors the first interpretation, higher resolution data are still necessary before rejecting definitely the second possibility. Deep multi-color CCD frames obtained with the Danish 1.5 m telescope clearly show that a group (or cluster) of faint galaxies is detected in the vicinity of the two quasars.
Arp Halton
Henry Alaina
Kruszewski Adrian
Pedersen Holger
Surdej Jean
No associations
LandOfFree
A new very interesting pair of quasars - Q0107 - 025 A and B does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A new very interesting pair of quasars - Q0107 - 025 A and B, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A new very interesting pair of quasars - Q0107 - 025 A and B will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1508175